Home / 88,123.56-121,636.17-53,680.74

Finding the Fourth Proportional to 88,123.56, 121,636.17 and 53,680.74

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Solution

The fourth proportional to 88,123.56, 121,636.17 and 53,680.74 is: 74,095.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.56 : 121,636.17 = 53,680.74 : x
  2. Step 2: Convert to fraction form
    88,123.56/121,636.17 = 53,680.74/x
  3. Step 3: Cross multiply
    88,123.56x = 121,636.17 × 53,680.74
  4. Step 4: Simplify right side
    88,123.56x = 6,529,519,616.37
  5. Step 5: Solve for x
    x = 6,529,519,616.37/88,123.56
  6. Step 6: Final answer
    x = 74,095.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.